Factors and Layers of the Earth

Math:

Students are learning to use Divisibility Rules to determine the factors, common factors and the greatest common factor (GCF) of numbers.

A)     Factor: numbers we can multiply together to get another number                       OR                       a whole number that will divide exactly into a number without leaving a remainder.                E.g. Factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24 (1 x 24 = 24, 2 x 12 = 24, 3 x 8 = 24, …) B)     Common factor: when we find the factors of tow or more numbers, and then find some factors are the                                  same (“common”), then they are “common factors.”  C)     Greatest Common Factor (GCF): simply the largest of the common factors.

Science:

Students continue to measure the rate at which their ecosystem grass is growing as well as making observations about their snails and the overall ecosystem environment.

They have also begun the Planet Earth Unit and have considered what they already know about earth and what they would like to know. Tomorrow they will go deeper into this topic by exploring the Layers of the Earth.

Friday we will build models of the Earth's layers! This is a lot of fun!